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National Stock Number:
5305-00-125-1809
Federal Supply Class:
5305
National Item Identification Number:
001251809
Description:
SCREW,CAP,SOCKET HEAD
Detail:
An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.
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Manufacturer Information:
| F299807 | K0289 | BRITISH AEROSPACE MILITARY AIRCRAFT & AEROSTRUCTURES | | F299807 | U9143 | BAE SYSTEMS (OPERATIONS) LIMITED |
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Techincal Specification:
| THREAD SERIES DESIGNATOR | UNF | | NOMINAL THREAD DIAMETER | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 2A | | THREAD DIRECTION | RIGHT-HAND | | THREAD LENGTH | 0.530 INCHES NOMINAL | | FASTENER LENGTH | 1.217 INCHES NOMINAL | | MATERIAL | STEEL COMP 4047 OVERALL | | SURFACE TREATMENT | PHOSPHATE OVERALL | | HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND | | 41.0 ROCKWELL C MAXIMUM OVERALL | | HEAD STYLE | KNURLED NO. 1 | | HEAD DIAMETER | 0.370 INCHES NOMINAL | | HEAD HEIGHT | 0.248 INCHES NOMINAL | | INTERNAL DRIVE STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.188 INCHES NOMINAL | | HOLE CONFIGURATION STYLE | ROUND INTERNAL HEXAGON | | HOLE TYPE | DRILLED | | HOLE QUANTITY | 6 | | HOLE DIAMETER | 0.660 INCHES NOMINAL |
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